US4796912A - Elongate gas generator for inflating vehicle inflatable restraint cushions - Google Patents

Elongate gas generator for inflating vehicle inflatable restraint cushions Download PDF

Info

Publication number
US4796912A
US4796912A US07/119,764 US11976487A US4796912A US 4796912 A US4796912 A US 4796912A US 11976487 A US11976487 A US 11976487A US 4796912 A US4796912 A US 4796912A
Authority
US
United States
Prior art keywords
gas generator
chamber
pair
tubular member
combustion chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/119,764
Other languages
English (en)
Inventor
Donald R. Lauritzen
Gregory R. Goin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autoliv ASP Inc
Original Assignee
Morton Thiokol Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22386238&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US4796912(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Morton Thiokol Inc filed Critical Morton Thiokol Inc
Priority to US07/119,764 priority Critical patent/US4796912A/en
Assigned to MORTON THIOKOL, INC., 110 NORTH WACKER DRIVE, CHICAGO, ILLINOIS 60606-1560 reassignment MORTON THIOKOL, INC., 110 NORTH WACKER DRIVE, CHICAGO, ILLINOIS 60606-1560 ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GOIN, GREGORY R., LAURITZEN, DONALD R.
Priority to CA000572744A priority patent/CA1327060C/en
Priority to JP63208468A priority patent/JPH0692219B2/ja
Priority to EP88310408A priority patent/EP0316119B1/de
Priority to DE8888310408T priority patent/DE3872175T2/de
Priority to AT88310408T priority patent/ATE77312T1/de
Publication of US4796912A publication Critical patent/US4796912A/en
Application granted granted Critical
Assigned to AUTOLIV ASP, INC reassignment AUTOLIV ASP, INC MERGER AND CHANGE OF NAME Assignors: MORTON INTERNATIONAL, INC
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J7/00—Apparatus for generating gases

Definitions

  • the present invention relates to gas generators for inflating vehicle inflatable restraint cushions. More particularly, the present invention relates to elongated gas generators which may be mounted on a steering wheel for inflating vehicle inflatable restraint cushions for driver protection.
  • Driver side gas generators have tended to have generally a square or circular shape as viewed in a plane parallel to the steering wheel.
  • a gas generator is shown, for example, in U.S. Pat. No. 4,530,516 to Adams et al, which patent is assigned to the assignee of the present invention.
  • an igniter assembly is typically contained centrally thereof and is generally surrounded by a combustion chamber.
  • Surrounding the combustion chamber is typically an assembly of gas deflecting and filtering members.
  • Gas exit ports are contained along the perimeter of the gas generator and are spaced circumferentially thereabout to effect flow of gas into a gas bag after it is passed through the filtering assembly for expanding the gas bag so that it may protect a driver in the event of an accident.
  • cylindrical elongate gas generators have typically been proposed for protection of passengers in a vehicle.
  • One such gas generator is shown in U.S. Pat. No. 4,005,876 to Jorgensen et al, which patent is assigned to the assignee of the present invention.
  • an igniter means typically extends over the length of the gas generator and is centrally located therein.
  • the igniter is typically surrounded by a combustion chamber which is in turn generally surrounded by filtering screens.
  • the cylindrical housing is perforated to effect routing of the gases to a gas bag.
  • FIG. 1 is a schematic view of a gas generator embodying the present invention and mounted to a steering wheel;
  • FIG. 2 is an elongate sectional view of the gas generator of FIG. 1;
  • FIG. 3 is a sectional view of the gas generator of FIG. 2 taken along the lines 3--3 thereof.
  • FIG. 1 a gas generator for inflating a vehicle inflatable restraint cushion, i.e., a gas bag.
  • the gas generator or inflater 10 is illustrated in FIG. 1 as mounted on steering wheel 14, and, as shown, the length of the inflater 10 is such that it may suitably be contained within the perimeter of the steering wheel 14.
  • a tubular member which includes a pair of end portions 18 and 20 which have male threads, illustrated at 22, thereon.
  • the plate members 24 and 26 are inserted into the end portions 18 and 20 respectively which are flared outwardly to receive the similarly flared plate members and to suitably locate them, and they are suitably attached such as by pressing onto annular locking grooves or by screw threads and sealed by seal compound 28.
  • a hole 30 is centrally located in each of the plate members 24 and 26 for receiving respective threaded end portions 32 and 34 of a cylindrical member 36 of an igniter assembly 38.
  • Nuts 40 are screwed onto the threaded end portions 32 and 34 to retain the igniter assembly 38 in position, and a suitable elastomeric o-ring 42 is provided between each end portion 32 and 34 and the respective plate member 24 and 26 to seal the igniter installation.
  • An aperture 44 is provided in the cylindrical member wall 36 intermediate the end portions 32 and 34.
  • a tubular member 46 is welded or otherwise suitably sealingly attached to the cylindrical member 6 at aperature 44 or alternately the tubular member 46 and cylindrical member 36 may be forged to provide a T-joint for flow communication between the cylindrical member 36 and tubular member 46.
  • the other end of tubular member 46 extends through an aperture 48 in the wall of the tubular member 16 and is suitably sealingly attached thereto such as by a gasket 49.
  • a mounting plate 60 is suitably attached to tubular member 16 such as by welding or may be formed integrally with tubular member 6 to provide means for attachment of the inflater 10 to the steering wheel 14.
  • the mounting plate 60 includes an aperture 61 which aligns and communicates with tubular member 46.
  • a suitable initiator or squib 50 is inserted in the aperture 61 and into the tubular member 46 and rests on a shoulder 52 therein.
  • the squib 50 is sealingly retained therein by means of a retainer member 54, which is threadedly received in the mounting plate aperture 61, and a suitable seal 56.
  • Electrical lead wires 58 connect to the squib 50 to transmit thereto an electrical signal from a crash sensor (not shown) to fire the squib 50 in the event of an automobile accident.
  • the cylindrical member 36 contains a pyrotechnic material illustrated at 62 which may be any of a variety of compositions meeting the requirements for rapid ignition and non-toxicity, a typical material for this use being a granular mixture of by weight 25 percent boron and 75 percent potassium nitrate.
  • the cylindrical member 36 which is closed at both ends by cap nuts 40, is perforated along its length by a plurality of perforations 64.
  • a layer 66 of aluminum foil is caused to cover the perforations 64 to hermetically seal, prior to ignition, the igniter 36.
  • the firing of the squib 50 causes ignition of the pyrotechnic material 62 which in turn releases hot gases through the perforations 64, bursting the aluminum foil 66, and into the combustion chamber, illustrated at 68, which is defined as the space (except for the igniter assembly 38) bounded by the tubular member 16 and plate members 24 and 26. Since the radius of the combustion chamber 68 is as a result substantially equal to the inner radius of the tubular member 16, the combustion chamber 68 is thereby provided with a volume to provide, in accordance with the present invention, a maximum amount of solid fuel gas generant composition, illustrated at 70, within the size limitations of the inflater 10.
  • the combustion chamber 68 has a tubular construction to provide a large pressure safety factor without a weight penalty.
  • the aluminum foil 66 in addition to providing an hermetic seal, is also provided to insure that the high temperature gases produced by the pyrotechnic material 62, upon firing of the squib 50, have sufficient pressure to permeate the gas generant composition pellets 70 thoroughly for efficient and sustained ignition before they are released by rupture of the foil 66.
  • the combustion chamber 68 contains a styrofoam cushion 72 along each of its sides to protect the pellets 70 against breakage.
  • the gas generant pellets 70 may be any one of a number of compositions meeting the requirements of burning rate, non-toxicity, and flame temperature. Examples of compositions that may be used are described in U.S. Pat. Nos.
  • the combustion chamber 68 is preferably sized to have a volume equal to at least 7.0 cubic inches.
  • a cap-like member 74 which includes a cylindrical portion 76 and a portion 78 closing one end thereof and which at the other end thereof has a threaded portion 80 including female threads 82, is threadedly engaged to each end portion 18 and 20 respectively of the tubular member 16 to form a diffuser chamber 84 bounded by the respective cap-like member 74 and the respective plate member 24 and 26.
  • diffuser chambers 84 are provided on each side of the combustion chamber 68.
  • the diffuser chambers 84 may be attached to the tubular member 16 by means of a straight thread push-on joint.
  • the diffuser chambers 84 are alike and perform the same functions, only the diffuser chamber 84 associated with the plate member 26 will be described hereinafter, it being understood that the description thereof will apply equally to the structure and function of the diffuser chamber 84 associated with the plate member 24.
  • the plate member 26 has a plurality of apertures 86 therein to provide a flow path for generated gases from the combustion chamber 68 to the diffuser chamber 84.
  • plate member 24 has a plurality of apertures 86 therein.
  • a suitable foil such as a heat seal aluminum foil 88 is applied to one or both but preferably both sides of each of the plate members 24 and 26.
  • the plate members 24 and 26 provide area for port tailoring of different generant loads and combustion chamber pressures.
  • a generally cylindrical filter pack 90 composed of screen and/or other suitable filter materials for cooling the generated gases and removing particulate therefrom is disposed in the diffuser chamber 84 generally concentrically with the cylindrical portion 76 and extends generally over the length thereof.
  • the filter pack 90 is held at one end in a notch 92 in the plate member 26 and at the other end by a screen retainer member 94 which is held in position by spring 96.
  • the notch 92 in which an end of the filter pack 90 is seated is located radially outwardly of all of the apertures 86 in the plate member 26.
  • the retainer 94 closes the space between the other end of the filter pack 90 and the diffuser wall 76, and the filter pack extends over generally the length of the diffuser chamber 84 so that generated gas and particulate matter therein is prevented from getting between the filter pack 90 and the diffuser wall 76 except by flow through the filter pack 90.
  • Apertures 98 are provided in the cylindrical portion 76 to provide flow passages for filtered generated gas from the diffuser chamber 84 into a suitable gas bag (not shown) for inflating the gas bag for protection of a vehicle occupant in case of an accident.
  • the quantity and size of these apertures 98 as well as other apertures 64 and 86 may be determined applying principles commonly known to those of ordinary skill in the art to which this invention pertains.
  • the retainer 94 has a central opening 99 therein and is spaced from the end wall 78 to define a space or trap, illustrated at 100, therebetween whereby a cooling surface is provided on the end wall 78 and a solid block of particulate matter or other heavy residue may be accordingly formed and trapped in the space 100.
  • the filter pack 90 is disposed in the diffuser chamber 84 so that it is spaced from the diffuser wall 76 so as to provide a plenum chamber 102 between the filter pack 90 and the diffuser wall 76.
  • the notch 92 is located radially outwardly of all of the apertures 86 as previously stated and the retainer 94 is provided.
  • combustion and diffuser chamber walls 16 and 74 respectively may be composed of any suitable material which may withstand the pressures encountered therein, they are preferably composed of aluminum which provides minimum weight to the inflater 10. The sizes discussed hereinafter are based on the use of aluminum.
  • the combustion chamber wall thickness, illustrated at 104 which may typically be 0.10 inch, must be adequate to withstand the high combustion chamber pressures.
  • the diffuser chambers 84 are not required to withstand such high pressures.
  • the walls 76 and 78 of the diffuser chambers 84 have a thickness, illustrated at 106, which is less than the thickness 104 of the combustion chamber wall.
  • the diffuser chambers 84 provide an increased area for diffuser apertures 98 so as to maintain lower diffuser pressures and softer gas flow, and the thickness of the walls 76 and 78 may correspondingly be even further reduced.
  • the thickness 106 may be 0.022 inch (less than one-fourth of the combustion chamber wall thickness 104) to adequately withstand the pressures encountered within the diffuser chamber 84.
  • finer filtering may also be effected to provide cleaner gas flow to the gas bag.
  • the inflater mounting plate 60 is fixedly attached to a reaction plate 108 to which is also attached the gas bag (not shown).
  • the reaction plate 108 is in turn fixedly secured to the hub of steering wheel 14 by means of suitable fastening means such as screws illustrated at 110.
  • a circular gas generator such as shown in the aforesaid patent to Adams et al may typically have a combustion chamber volume of typically about 5 cubic inches which may contain about 85 grams of solid fuel pellets.
  • the inflater 10 is provided with a length illustrated at 112 of preferably less than about 8 inches and a diameter illustrated at 114 of preferably less than about 2 inches, and the combustion chamber may be sized, in accordance with principles commonly known to those having ordinary skill in the art to which this invention pertains, to have a volume of at least about 7 cubic inches adequate to contain about 120 grams of solid fuel pellets 70 so as to provide higher performance with the same type of fuel or equal performance with a less efficient fuel.
  • an inflater which may be sized to provide a maximum combustion chamber volume while being confined within the perimeter of an automobile steering wheel and having a minimum effect on the aesthetics of the steering wheel and the general interior of the vehicle.
  • Such an inflater 10 may even be placed on the steering wheel hub of even subcompact automobiles.
  • the combustion chamber 68 which contains the environmentally sensitive components, lends itself to easy sealing methods since the only openings therefrom are in the plates 24 and 26 which are easily accessible by removal of the cap members 74.
  • the construction of the inflater from a small number of parts permits the use of high production fabrication methods.
  • the igniter boss construction allows for adaption of a variety of different initiators which may be required by different vehicle manufacturers.
  • Functioning of the inflater 10 begins with an electrical signal from a crash sensor (not shown) through wires 58 to the squib 50.
  • the squib 50 fires into the igniter granules 62 which burn with the development of hot gases under pressure that burst through the aluminum foil 66 and flow through perforations 64 and into the combustion chamber 68.
  • the hot igniter gases ignite the gas generant pellets 70 which release inflation gases. These inflation gases burst through the aluminum foil 88 and flow through plate apertures 86 into the diffuser chambers 84. Some particulate matter is removed from the inflation gases in traps 100.
  • the resulting cleaner inflation gases pass through filter packs 90, which serve to cool and remove additional particulate matter from them, and into plenum chambers 102.
  • the inflation gases then exit the inflater through diffuser chamber apertures 98 and into the gas bag (not shown) of a vehicle restraint system.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)
US07/119,764 1987-11-12 1987-11-12 Elongate gas generator for inflating vehicle inflatable restraint cushions Expired - Lifetime US4796912A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US07/119,764 US4796912A (en) 1987-11-12 1987-11-12 Elongate gas generator for inflating vehicle inflatable restraint cushions
CA000572744A CA1327060C (en) 1987-11-12 1988-07-22 Elongate gas generator for inflating vehicle inflatable restraint cushions
JP63208468A JPH0692219B2 (ja) 1987-11-12 1988-08-24 車輌の膨張拘束クッションを膨張させる細長いガス発生器
AT88310408T ATE77312T1 (de) 1987-11-12 1988-11-04 Laengsfoermiger gaserzeuger zum aufblasen von aufblasbaren rueckhaltekissen in fahrzeugen.
EP88310408A EP0316119B1 (de) 1987-11-12 1988-11-04 Längsförmiger Gaserzeuger zum Aufblasen von aufblasbaren Rückhaltekissen in Fahrzeugen
DE8888310408T DE3872175T2 (de) 1987-11-12 1988-11-04 Laengsfoermiger gaserzeuger zum aufblasen von aufblasbaren rueckhaltekissen in fahrzeugen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/119,764 US4796912A (en) 1987-11-12 1987-11-12 Elongate gas generator for inflating vehicle inflatable restraint cushions

Publications (1)

Publication Number Publication Date
US4796912A true US4796912A (en) 1989-01-10

Family

ID=22386238

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/119,764 Expired - Lifetime US4796912A (en) 1987-11-12 1987-11-12 Elongate gas generator for inflating vehicle inflatable restraint cushions

Country Status (6)

Country Link
US (1) US4796912A (de)
EP (1) EP0316119B1 (de)
JP (1) JPH0692219B2 (de)
AT (1) ATE77312T1 (de)
CA (1) CA1327060C (de)
DE (1) DE3872175T2 (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359902A2 (de) * 1988-09-21 1990-03-28 Bayern-Chemie Gesellschaft für flugchemische Antriebe mit beschränkter Haftung Gasgenerator
US4919897A (en) * 1987-05-22 1990-04-24 Dynamit Nobel Aktiengesellschaft Gas generator for air bag
US4998750A (en) * 1988-10-13 1991-03-12 Bayern-Chemie Gesellschaft Fuer Flugchemisch Antriebe Mbh Gas generator especially for inflating a safety bag
US5033390A (en) * 1989-11-13 1991-07-23 Morton International, Inc. Trilevel performance gas generator
EP0496267A1 (de) * 1991-01-19 1992-07-29 Dynamit Nobel Aktiengesellschaft Gasgenerator, insbesondere für Airbag
US5139280A (en) * 1989-07-05 1992-08-18 S.N.C. Livbag Cold-gas pyrotechnic generator
US5259644A (en) * 1990-11-28 1993-11-09 Dynamit Nobel Aktiengesellschaft Ignition unit, in particular for an air bag gas generator
WO1994006735A2 (de) * 1992-09-21 1994-03-31 Diehl Gmbh & Co. Pyrotechnische mischung und gasgenerator für einen airbag
US5482315A (en) * 1994-06-07 1996-01-09 Morton International, Inc. Large L/D ratio tubular hybrid gas generator for the inflation of air bags
US5513879A (en) * 1994-05-04 1996-05-07 Breed Automotive Technology, Inc. Two stage inflator with module venting for passenger side airbags
US5645298A (en) * 1996-01-05 1997-07-08 Trw Inc./Trw Vehicle Safety Systems, Inc. Inflator for an inflatable vehicle occupant protection device
US5753852A (en) * 1994-09-23 1998-05-19 Temic Bayern-Chemie Airbag Gmbh Gas generator
US5844164A (en) * 1996-02-23 1998-12-01 Breed Automotive Technologies, Inc. Gas generating device with specific composition
US20030062713A1 (en) * 1998-06-19 2003-04-03 Young Anthony M. Dual output inflator with independent gas storage vessels
US20030178820A1 (en) * 2002-03-19 2003-09-25 Green David J. Inflatable curtain mudule for use in a vehicle
US20030227160A1 (en) * 2002-06-06 2003-12-11 Paul Dinsdale Biaxial flow inflator with independently adjusted gas orfices
US20040068980A1 (en) * 2002-09-03 2004-04-15 Trw Automotive Safety Systems Gmbh Gas generator
US20040217579A1 (en) * 2003-05-02 2004-11-04 Trw Automotive Gmbh Gas bag module
US20050004516A1 (en) * 2003-07-02 2005-01-06 Guy Vanney Steerable and shapable catheter employing fluid force
US20050062273A1 (en) * 2003-08-07 2005-03-24 Naoki Matsuda Inflator
US20060091660A1 (en) * 2004-10-29 2006-05-04 Lang Gregory J Center discharge hybrid inflator device
US20080169630A1 (en) * 2007-01-16 2008-07-17 Trw Airbag Systems Gmbh Gas generator, in particular for a vehicle occupant restraint system, and method of activating a vehicle occupant restraint system
US20080309057A1 (en) * 2005-09-13 2008-12-18 Neumayer Tekfor Holding Gmbh Combustion Chamber and Method for Production Thereof
US8662532B2 (en) 2010-11-10 2014-03-04 Autoliv Asp, Inc. Inflator having a mechanically coupled two-piece housing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04283148A (ja) * 1990-11-28 1992-10-08 Dynamit Nobel Ag ガス発生器
DE202004017428U1 (de) 2004-11-10 2005-01-27 Trw Airbag Systems Gmbh Gasgenerator und Gassackmodul

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330194A1 (de) * 1973-06-14 1974-12-19 Bayern Chemie Gmbh Flugchemie Anordnung bei sicherheitseinrichtungen zum schutze der insassen von personentransportmitteln
US3958949A (en) * 1973-06-26 1976-05-25 Societe Nationale Des Poudres Et Explosifs Gas generator with a combustion chamber laterally surrounded by a cooling chamber
US4005876A (en) * 1975-04-10 1977-02-01 Thiokol Corporation Gas generator for automobile safety cushions
US4203787A (en) * 1978-12-18 1980-05-20 Thiokol Corporation Pelletizable, rapid and cool burning solid nitrogen gas generant
US4369079A (en) * 1980-12-31 1983-01-18 Thiokol Corporation Solid non-azide nitrogen gas generant compositions
US4380346A (en) * 1981-04-24 1983-04-19 Thiokol Corporation Method of and apparatus for speeding the response of an air bag inflator at low temperatures
US4530516A (en) * 1984-07-09 1985-07-23 Morton Thiokol Inc. Aluminum inflator with steel center-tie

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904221A (en) * 1972-05-19 1975-09-09 Asahi Chemical Ind Gas generating system for the inflation of a protective bag
JPS5742598A (en) * 1980-08-26 1982-03-10 Nippon Telegr & Teleph Corp <Ntt> Liquid-phase epitaxial growing method
JPS581333A (ja) * 1982-04-30 1983-01-06 Sharp Corp 電子装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330194A1 (de) * 1973-06-14 1974-12-19 Bayern Chemie Gmbh Flugchemie Anordnung bei sicherheitseinrichtungen zum schutze der insassen von personentransportmitteln
US3958949A (en) * 1973-06-26 1976-05-25 Societe Nationale Des Poudres Et Explosifs Gas generator with a combustion chamber laterally surrounded by a cooling chamber
US4005876A (en) * 1975-04-10 1977-02-01 Thiokol Corporation Gas generator for automobile safety cushions
US4203787A (en) * 1978-12-18 1980-05-20 Thiokol Corporation Pelletizable, rapid and cool burning solid nitrogen gas generant
US4369079A (en) * 1980-12-31 1983-01-18 Thiokol Corporation Solid non-azide nitrogen gas generant compositions
US4380346A (en) * 1981-04-24 1983-04-19 Thiokol Corporation Method of and apparatus for speeding the response of an air bag inflator at low temperatures
US4530516A (en) * 1984-07-09 1985-07-23 Morton Thiokol Inc. Aluminum inflator with steel center-tie

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919897A (en) * 1987-05-22 1990-04-24 Dynamit Nobel Aktiengesellschaft Gas generator for air bag
US5000479A (en) * 1988-09-21 1991-03-19 Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh Housing for a gas generator
EP0359902A3 (de) * 1988-09-21 1991-04-17 Bayern-Chemie Gesellschaft für flugchemische Antriebe mit beschränkter Haftung Gasgenerator
EP0359902A2 (de) * 1988-09-21 1990-03-28 Bayern-Chemie Gesellschaft für flugchemische Antriebe mit beschränkter Haftung Gasgenerator
US4998750A (en) * 1988-10-13 1991-03-12 Bayern-Chemie Gesellschaft Fuer Flugchemisch Antriebe Mbh Gas generator especially for inflating a safety bag
US5139280A (en) * 1989-07-05 1992-08-18 S.N.C. Livbag Cold-gas pyrotechnic generator
AU629059B2 (en) * 1989-11-13 1992-09-24 Morton International, Inc. Trilevel performance gas generator
US5033390A (en) * 1989-11-13 1991-07-23 Morton International, Inc. Trilevel performance gas generator
US5259644A (en) * 1990-11-28 1993-11-09 Dynamit Nobel Aktiengesellschaft Ignition unit, in particular for an air bag gas generator
US5259643A (en) * 1991-01-19 1993-11-09 Dynamit Nobel Ag Gas generator for an air bag
EP0496267A1 (de) * 1991-01-19 1992-07-29 Dynamit Nobel Aktiengesellschaft Gasgenerator, insbesondere für Airbag
WO1994006735A2 (de) * 1992-09-21 1994-03-31 Diehl Gmbh & Co. Pyrotechnische mischung und gasgenerator für einen airbag
WO1994006735A3 (de) * 1992-09-21 1994-09-15 Diehl Gmbh & Co Pyrotechnische mischung und gasgenerator für einen airbag
EP0712767A1 (de) * 1992-09-21 1996-05-22 DIEHL GMBH &amp; CO. Gasgenerator für einen Airbag
EP0713808A1 (de) * 1992-09-21 1996-05-29 DIEHL GMBH &amp; CO. Airbaganordnung
US5527405A (en) * 1992-09-21 1996-06-18 Diehl Gmbh & Co. Pyrotechnic mixture and gas generator for an airbag
US5562303A (en) * 1992-09-21 1996-10-08 Honda Giken Kogyo Kabushiki Kaisha Pyrotechnic mixture and gas generator for an airbag
US5585048A (en) * 1992-09-21 1996-12-17 Diehl Gmbh & Co. Pyrotechnic mixture and gas generator for an airbag
US5589662A (en) * 1992-09-21 1996-12-31 Honda Giken Kogyo Kabushiki Kaisha Pyrotechnic mixture and gas generator for an airbag
US5513879A (en) * 1994-05-04 1996-05-07 Breed Automotive Technology, Inc. Two stage inflator with module venting for passenger side airbags
US5482315A (en) * 1994-06-07 1996-01-09 Morton International, Inc. Large L/D ratio tubular hybrid gas generator for the inflation of air bags
US5753852A (en) * 1994-09-23 1998-05-19 Temic Bayern-Chemie Airbag Gmbh Gas generator
US5645298A (en) * 1996-01-05 1997-07-08 Trw Inc./Trw Vehicle Safety Systems, Inc. Inflator for an inflatable vehicle occupant protection device
US5844164A (en) * 1996-02-23 1998-12-01 Breed Automotive Technologies, Inc. Gas generating device with specific composition
US6851705B2 (en) * 1998-06-19 2005-02-08 Autoliv Asp, Inc. Dual output inflator with independent gas storage vessels
US20030062713A1 (en) * 1998-06-19 2003-04-03 Young Anthony M. Dual output inflator with independent gas storage vessels
US6848708B2 (en) 2002-03-19 2005-02-01 Autoliv Asp, Inc. Inflatable curtain module for use in a vehicle
US20030178820A1 (en) * 2002-03-19 2003-09-25 Green David J. Inflatable curtain mudule for use in a vehicle
US20030227160A1 (en) * 2002-06-06 2003-12-11 Paul Dinsdale Biaxial flow inflator with independently adjusted gas orfices
US6854763B2 (en) 2002-06-06 2005-02-15 Autoliv Asp, Inc. Biaxial flow inflator with independently adjusted gas orifices
US20040068980A1 (en) * 2002-09-03 2004-04-15 Trw Automotive Safety Systems Gmbh Gas generator
US7137339B2 (en) * 2002-09-03 2006-11-21 Trw Airbag Systems Gmbh Gas generator
US20040217579A1 (en) * 2003-05-02 2004-11-04 Trw Automotive Gmbh Gas bag module
US7325823B2 (en) * 2003-05-02 2008-02-05 Trw Automotive Gmbh Gas bag module
US20050004516A1 (en) * 2003-07-02 2005-01-06 Guy Vanney Steerable and shapable catheter employing fluid force
US7101362B2 (en) * 2003-07-02 2006-09-05 St. Jude Medical, Atrial Fibrillation Division, Inc. Steerable and shapable catheter employing fluid force
US20060258978A1 (en) * 2003-07-02 2006-11-16 St. Jude Medical, Atrial Fibrillation Division, Inc. Steerable and shapable catheter employing fluid force
US20050062273A1 (en) * 2003-08-07 2005-03-24 Naoki Matsuda Inflator
US20060091660A1 (en) * 2004-10-29 2006-05-04 Lang Gregory J Center discharge hybrid inflator device
US7290797B2 (en) 2004-10-29 2007-11-06 Autoliv Asp, Inc. Center discharge hybrid inflator device
US20080309057A1 (en) * 2005-09-13 2008-12-18 Neumayer Tekfor Holding Gmbh Combustion Chamber and Method for Production Thereof
US20100102053A1 (en) * 2005-09-13 2010-04-29 Neumayer Tekfor Holding Gmbh Combustion Chamber and Method for Production Thereof
US20080169630A1 (en) * 2007-01-16 2008-07-17 Trw Airbag Systems Gmbh Gas generator, in particular for a vehicle occupant restraint system, and method of activating a vehicle occupant restraint system
US7828324B2 (en) * 2007-01-16 2010-11-09 Trw Airbag Systems Gmbh Gas generator, in particular for a vehicle occupant restraint system, and method of activating a vehicle occupant restraint system
US8662532B2 (en) 2010-11-10 2014-03-04 Autoliv Asp, Inc. Inflator having a mechanically coupled two-piece housing
US9010802B2 (en) 2010-11-10 2015-04-21 Autoliv Asp, Inc. Inflator having a mechanically coupled two-piece housing

Also Published As

Publication number Publication date
EP0316119A3 (en) 1989-12-06
JPH01136846A (ja) 1989-05-30
JPH0692219B2 (ja) 1994-11-16
DE3872175D1 (de) 1992-07-23
DE3872175T2 (de) 1992-12-03
CA1327060C (en) 1994-02-15
EP0316119B1 (de) 1992-06-17
EP0316119A2 (de) 1989-05-17
ATE77312T1 (de) 1992-07-15

Similar Documents

Publication Publication Date Title
US4796912A (en) Elongate gas generator for inflating vehicle inflatable restraint cushions
CA1310675C (en) Light weight vehicle restraint bag inflator
US4890860A (en) Wafer grain gas generator
US4902036A (en) Deflector ring for use with inflators with passive restraint devices
EP0069441B1 (de) Vorrichtung zur Beschleunigung des Aufblasens eines Luftkissens bei niedrigen Temperaturen
US6234521B1 (en) Airbag inflator and an airbag apparatus
US4547342A (en) Light weight welded aluminum inflator
JP2549188B2 (ja) 乗物用膨張可能衝撃保護バッグの膨張装置
US4530516A (en) Aluminum inflator with steel center-tie
US7950693B2 (en) Dual stage inflator
US4561675A (en) Auto ignition device
CA2102672C (en) Particulate removal in inflatable restraint system gas generators
EP0779187B1 (de) Unabhängiger,pyrotechnischer Zünder für eine Aufblasvorrichtung
US5351989A (en) Inflator assembly
US4865635A (en) Filter assembly for non-welded inflator device
US5951041A (en) Gas generator for air bag and air bag system
CA1293275C (en) Deflector ring for use with inflators for passive restraint devices
US6139055A (en) Adaptive heated stage inflator
US6224098B1 (en) Gas generator for air bag and air bag system
US5468016A (en) Gas generating agent pack of air bag inflation gas generator
JPH03186453A (ja) ガス発生器

Legal Events

Date Code Title Description
AS Assignment

Owner name: MORTON THIOKOL, INC., 110 NORTH WACKER DRIVE, CHIC

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:LAURITZEN, DONALD R.;GOIN, GREGORY R.;REEL/FRAME:004812/0666;SIGNING DATES FROM 19871103 TO 19871105

STCF Information on status: patent grant

Free format text: PATENTED CASE

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

SULP Surcharge for late payment
REFU Refund

Free format text: REFUND OF EXCESS PAYMENTS PROCESSED (ORIGINAL EVENT CODE: R169); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

AS Assignment

Owner name: AUTOLIV ASP, INC, UTAH

Free format text: MERGER AND CHANGE OF NAME;ASSIGNOR:MORTON INTERNATIONAL, INC;REEL/FRAME:009866/0350

Effective date: 19970429

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 12